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Rust-Plugins/overlay/oxide
wtclaude e3dc918400
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feat(bridge): Backpacks on protocol 14 — read a backpack (PLAN_REDESIGNS §11.3)
WhiteThunder's Backpacks as an optional integration (D199), as §11.3.2 designs it.
Read, never write (R2):

- hello/status `integrations.backpacks` adds `sizes`: the N of every registered
  backpacks.size.N, ascending (dynamic-size profiles left out). Hello is resent
  when Backpacks loads or unloads.
- `backpacks.read {steamId}`: API_ReadBackpackContentsAsJson, and only when that
  answered a backpack, API_GetBackpackCapacityById — the backpack is loaded by
  then, so the capacity follows a later grant (§11.3.1's trap). Each stack is
  reduced to slot, shortname, display (the game's English name, D340), amount,
  skin and name when set; a blueprint carries its target as `blueprint` (D341);
  contents one level deep; `overflow` past the capacity. `pageSize` is
  Backpacks' "Max size per page" from its config, cached by mtime.
- Refusals: backpacks-missing, bad-id, unreadable.

The bigger backpack an event lends is a backpacks.size.N permission pushed by
perm.sync (D337), so it needs no code here. Still protocol 14 (D332).

Compiled on both rigs (Rust changeset 167584; Oxide 2.0.7826, Carbon 2.0.262),
then restored to the bridge they ran before.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E14m6SuuY6i1vASFeGDBeY
2026-10-12 14:35:54 -05:00
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